JP3170708B2 - Gate lock - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a locking rod which is rotated by turning a handle to be locked and released from a locking rod receiver, and the locking rod is locked by the locking rod receiver. The present invention relates to a gate lock that locks against rotation.

[0002]

2. Description of the Related Art As a gate lock, for example, Japanese Utility Model 3-159
As shown in JP-A-9, a rotating body is provided in a cover fixed to one of the longitudinal members, a handle is mounted inside the gate of the rotating body, and a locking rod is mounted outside the gate of the rotating body, and the handle is attached to the rotating body. It is known that a locking rod is hooked on and released from a locking rod receiver provided on the other longitudinal ridge, and a mechanism for preventing rotation of the rotator is provided at the center of rotation of the rotator.

[0003]

The mechanism for preventing the rotation of the rotator in the gate lock described above is such that a shaft is inserted into a shaft hole of the rotator, and a locking member is locked to the rotator to a rotation preventing portion of the cover. The locking member is reciprocally movable at a position where the locking member is separated from the shaft, and the locking member is pushed in the releasing direction by a coil spring to press the distal end portion to the shaft so that the locking member is released. The structure is such that it moves against the spring to be in the locking position.

As described above, since the locking member is biased to move to the disengaged position by the coil spring, the shaft rotates when foreign matter such as sand or dust enters the case and the coil spring stops functioning. Even in this case, the engagement member may not move to the disengagement position, and the gate lock is easily broken.

Further, since the engaging member is moved to the engaging position against the coil spring on the semicircular outer peripheral surface or the cam portion of the shaft, the shaft is moved to move the engaging member between the locking position and the releasing position. It rotates 180 degrees, and the force required to rotate the shaft increases by the amount of the coil spring.
The operation becomes troublesome.

Accordingly, an object of the present invention is to provide a gate lock which can solve the above-mentioned problem.

[0007]

According to a first aspect of the present invention, a case 2 having a locking portion 33 therein and an outer rotating body 14 and an inner rotating body 15 rotatably provided in the case 2 are connected. And a rotating body 3 having a sliding guide portion 17 between them.
And the sliding guide 17 of the rotating body 3
A locking member 29 slidably provided reciprocally over a locking position for locking to the locking member 3 and a disengagement position separated from the locking portion 33, and a handle connected to the rotating body 3 through the case 2. A locking rod 6 inserted through the case 2 and connected to the rotating body 3, and the handle is rotated to lock the locking rod 6 together with the rotating body 3.
Is pivoted to lock and release from the locking rod receiver 10, the rotation center of the handle, the rotation center of the rotating body 3,
A shaft hole is formed over the rotation center of the locking rod 6, and a shaft 39 is rotatably inserted through the shaft hole, a pinion is provided in the shaft 39, and a rack meshed with the pinion is provided in the locking member 29. It is a gate lock characterized by having provided. According to a second aspect of the present invention, a case 2 having an engaging portion 33 therein, an outer rotating body 14 and an inner rotating body 15 rotatably provided in the case 2 are connected to each other, and a sliding guide portion 17 is provided therebetween. And a sliding guide portion 17 of the rotating member 3 is provided so as to be reciprocally slidable over a locking position for locking the locking portion 33 and a detached position separated from the locking portion 33. Locking member 29 and the case 2
And a locking rod 6 inserted through the case 2 and connected to the rotating body 3, and a locking rod 6 inserted through the case 2 and connected to the rotating body 3, and the handle is rotated to rotate the locking rod 6 together with the rotating body 3. The lock center of the handle, the rotation center of the rotating body 3, the lock rod 6,
The shaft 39 is formed by forming a shaft hole over the center of rotation of the shaft 39 and connecting the outer shaft 40 and the inner shaft 41 by an eccentric connecting rod 60 to the shaft hole. A gate which is rotatably inserted and has a groove 61 formed in the locking member 29 to be engaged with a connecting rod 60 of a shaft 39 in a direction substantially perpendicular to a moving direction of the locking member 29. It is a tablet.

[0008]

According to the first aspect of the present invention, when the shaft 39 rotates, the pinion rotates, and the rotation of the pinion causes the locking member 29 to move the sliding guide portion 1 of the rotating body 3 via the rack.
7, it slides back and forth between the locking position and the disengagement position even if foreign matter such as sand or dust enters the case 2.
Can be reliably moved to provide a highly reliable gate lock. The force required to rotate the shaft 39 only needs to be proportional to the weight of the locking member 29, and since the pinion and the rack are used, the shaft 39 is The moving member 29 is rotated by 90 degrees.
Can be moved to the locking position and the releasing position, and the operation is simplified.

According to the second invention, when the shaft 39 rotates, the locking member 29 is reciprocated by the connecting rod 60 and the groove 61 along the sliding guide portion 17 of the rotating body 3 between the locking position and the releasing position. Therefore, even if foreign matter such as sand or dust enters the case 2, the locking member 29 can be reliably moved to provide a highly reliable gate lock. The force required to rotate the shaft 39 is small. It only needs to match the weight of the locking member 29 and the shaft 3
By rotating the 9 by 90 degrees, the moving member 29 can be moved to the locking position and the releasing position, and the operation is simplified.

[0010]

[Embodiment] As shown in FIG. 1, a case 2 is mounted on a longitudinal ridge 1 constituting one of the double-sided gates, and a rotating body 3 is rotatably provided in the case 2, and the rotating body 3 is rotated. An outer handle 4 is attached to the outside of the gate of the body 3, and an inner handle 5 and a locking rod 6 are attached to the inside of the gate of the rotating body 3. A main body 8 is attached to a longitudinal ridge 7 that constitutes the other door of the double-opening gate. An outer handle 9 is attached to the outside of the gate of the main body 8, and a locking rod receiver 10 is attached to the inside of the gate of the main body 8. The rotating body 3 is held by holding the outer handle 4 and the inner handle 5. By rotating, the locking rod 6 is hooked on the locking rod receiver 10 and detached.

The case 2 is, as shown in FIGS. 1 and 2,
The outer case 11 and the inner case 12 are connected by a long bolt 13 so as to sandwich the longitudinal ridge 1. The rotating body 3 is connected to the outer rotating body 14 and the inner rotating body 15 with screws 16 and slides between them. It has a moving guide portion 17.

The outer handle 4 includes a shaft 4a and a handle 4
The shaft 4a is rotatably fitted and supported in the hole 18 of the outer case 11, and the outer rotating body 14 is connected to the end of the shaft 4a so as not to rotate. A handle rotation positioning mechanism 19 is provided between the body 14 and the outer case 11.

The handle rotation positioning mechanism 19 is shown in FIG.
As shown in FIG. 2, a ball 21 and a spring 22 provided in a concave groove 20 continuous with the hole 18 of the outer case 11,
A positioning recess 23 is formed on the outer peripheral surface of the outer rotating body 14 at intervals of 90 degrees. Each time the outer rotating body 14 rotates 90 degrees, the ball 21
3 is fitted. Note that the plate 2 is held so that the ball 21 and the spring 22 do not separate from the recess 20.
4 is attached to the outer case 11 with screws 25.

The inner handle 5 has a shaft 5a and a handle 5
The locking rod 6 is provided integrally with the shaft 5a in a direction opposite to the handle 5b, and the shaft 5a is rotatably fitted and supported in the hole 26 of the inner case 12. The rotor 27 is provided at the end of the shaft 5a so as not to rotate.

The rotor 27 has a plate 27a provided with a pair of protrusions 27b. The plate 27a is connected to the shaft portion 5a of the inner handle 5 so as not to rotate. Plate 1 of rotating body 15
The inner handle 5, the rotor 27, and the inner rotary body 15 are integrally fitted to the pair of U-shaped pieces 15b provided on the 5a so as to rotate integrally.

The inner rotating body mounting surface 1 of the outer rotating body 14
A groove 28 is formed in 4a to form the above-mentioned sliding guide 17 between the inner rotating body 15 and the sliding guide 1.
7, a plate-shaped locking member 29 is slidably provided. The locking member 29 has an opening window 30, and the opening window 30 has a plurality of teeth 31 linearly. It is provided as a rack.

A pair of projections 32 are integrally provided on the inner surface of the outer case 11 so as to be continuous with the hole 18, and the pair of projections 32 serves as a locking portion 33. Reciprocatingly slidable between a locking position where the locking member 33 is locked and a detached position separated from the locking portion 33.

The shaft portion 4a of the outer handle 4, the outer rotating body 14, the inner rotating body 15, the rotor 27, and the inner handle 5
The shaft holes 34, 35, 3
6, 37, 38 are formed concentrically, and a shaft 39 is inserted over each shaft hole.

The shaft 39 comprises an outer shaft 40 and an inner shaft 41. A slit 42 is formed in the outer shaft 40 at the axially outer end face, and the outer rotating body 14 is formed at the axially inner end of the outer shaft 40. A large-diameter portion 43, a pinion 44, and a prism portion 45 that fit into the shaft hole 35 are provided.
Nine teeth 31 are fitted.

A square hole 46 is formed in the axially outer end surface of the inner shaft 41 so that a square column portion 45 of the outer shaft 40 is formed.
And the inner shaft 41 and the outer shaft 40 are connected so as to rotate integrally, and the inner shaft 41
A slit 47 is formed in the inner end face in the axial direction, and the shaft 39 can be rotated by engaging a key (not shown) with the slits 42 and 47.

A shaft rotation positioning mechanism 50 is provided between the outer rotating body 14 and the outer shaft 40. The shaft rotating positioning mechanism 50 is provided with a ball 52 provided in a concave portion 51 opened in a shaft hole 35 of the outer rotating body 14. ,
It comprises a spring 53 and recesses 54 formed at 90-degree intervals on the outer peripheral surface of the large-diameter portion 43 of the outer shaft 40. Each time the outer shaft 40 rotates 90 degrees, the ball 52
To fit.

Next, the operation of attaching the gate lock to the longitudinal ridge 1 will be described. The shaft portion 4a of the outer handle 4 and the outer rotating body 14 are attached to the outer case 11, and a handle rotation positioning mechanism 19 is provided.
And the outer shaft 40 is inserted, and the shaft rotation positioning mechanism 50 is mounted.
8 and the inner rotating body 15 is
Connect at 6 and assemble the outer part. Thereby, the engaging member 29 can be easily attached to the rotating body 3 and the pinion 44
And the engaging portion 31 can be reliably engaged.

The shaft 5 of the inner handle 5 is attached to the inner case 12.
a and the rotor 27 are attached, and the inner shaft 41 is inserted to assemble the inner part.

The outer case 11 and the inner case 12
, The protrusion 27b of the rotor 27 is engaged with the U-shaped piece 15b of the inner rotating body 15, and the prism 45 of the outer shaft 41 and the square hole 46 of the inner shaft 41 are fitted. Outer case 11 and inner case 1 with long bolts 13
2 and tighten the longitudinal ridge 1 to mount it.

Since the shaft 39 is composed of the outer shaft 40 and the inner shaft 41 as described above, the outer portion and the inner portion can be attached so as to clamp the longitudinal ridge 1 after the outer portion and the inner portion are assembled in advance. Become.

Next, the operation of the gate lock will be described. As shown in FIG. 1, when the direction of the slit 42 of the outer shaft 40 is substantially orthogonal to the handle 4 b of the outer handle 4, the engaging member 29 is at the detached position separated from the engaging portion 33. In this case, the direction of the slit 47 of the inner shaft 41 is also substantially orthogonal to the handle 5b of the inner handle 5.

When the outer handle 4 is rotated in the above-described state, the rotating body 3 is rotated, whereby the locking rod 6 is rotated together with the inner handle 5 to be engaged with and disengaged from the locking rod receiver 10. At this time, since the shaft 39 is held by the outer rotating body 14 by the shaft rotation positioning mechanism 50, the shaft 39 rotates with the rotating body 3 and the locking member 29 also rotates with the rotating body 3.

As shown in FIG. 1, the locking rod 6 is
In a state where the key is locked to the slit 0, the key (not shown) is
7 and the shaft 39 is rotated 90 degrees, the pinion 44 rotates and the engaging member 29 moves to the locking position indicated by the phantom line in FIG. Then, the rotation of the rotating body 3 is blocked and locked. At this time, the orientation of the slits 42 and 47 is
b, since the orientation is substantially the same as that of the handle 5b of the inner handle 5, the rotation
Can be determined whether or not is locked.

At this time, when the shaft 39 rotates 90 degrees, the ball 52 fits into the concave portion 54, so that the rotation of the shaft 39 can be sensed and the shaft 39 can be held at that position.

The lock of the rotating body 3 is released by rotating the shaft 39 by 90 degrees in the opposite direction as described above.

Next, a second embodiment of the present invention will be described. FIG.
As shown in FIG. 7, the outer shaft 40 and the inner shaft 41 are detachably connected by a connecting rod 60 to form a shaft 39, and the axis of the connecting rod 60 is eccentric with the axis of the outer shaft 40 and the inner shaft 41. It has become.

The engaging member 29 is formed with a groove 61 serving as an engaging portion with which the eccentric portion is engaged. The groove 61 is substantially perpendicular to the moving direction of the engaging member 29, as shown in FIG.
When the connecting rod 60 is fitted into the notch groove 61 of the engaging member 29 and the shaft 39 rotates 90 degrees, the engaging member 29 is separated from the locking portion 33 shown by a solid line in FIG. It reciprocates over a locking position locked by the locking portion 33 indicated by a virtual line.

[0033]

According to the first aspect of the present invention, a shaft is provided.
When 39 rotates, the pinion rotates, and the pinion rotates.
The rotation causes the locking member 29 to slide on the rotating body 3 via the rack.
Reciprocating sliding to the locking position and release position along the motion guide part 17
Therefore, even if foreign matter such as sand or dust enters the case 2, the locking member 29 can be reliably moved to form a highly reliable gate lock, and the force required to rotate the shaft 39 is limited. It is only necessary to match the weight of the stop member 29, and since the pinion and the rack are used, it is possible to move the moving member 29 to the locking position and the release position by rotating the shaft 39 by 90 degrees. It's easy.

According to the second aspect of the present invention, the shaft 3
9 rotates, the connecting rod 60 and the groove 61 engage the locking member 29.
Is disengaged from the locked position along the sliding guide portion 17 of the rotating body 3.
Because the sliding member reciprocally slides to the position, even if foreign matter such as sand or dust enters the case 2, the locking member 29 can be reliably moved to provide a highly reliable gate lock, and the shaft 39 rotates. The force required only for the weight of the locking member 29 may be sufficient, and by rotating the shaft 39 by 90 degrees, the moving member 29 can be moved to the locking position and the releasing position, and the operation is simplified. .

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view of a gate lock showing a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the gate lock.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is an exploded perspective view of a shaft and a locking member according to a second embodiment of the present invention.

FIG. 5 is a front view showing a state in which a locking member is attached to an outer case.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Language, 2 ... Case, 3 ... Rotating body, 4 ... Outer handle, 5 ... Inner handle, 6 ... Locking rod, 10 ... Locking rod receiver, 11 ... Outer case, 12 ... Inner case, 14 ... Outer rotating body Reference numeral 15 inner rotating body 29 locking member 31 tooth portion 33 locking portion 39 shaft 40 outer shaft 41 inner shaft 60 connecting rod 61 groove.

Claims (2)

(57) [Claims] 1. A case 2 having a locking portion 33 therein,
The outer rotating body 14 rotatably provided in the case 2
The inner rotating body 15 is connected, and the sliding guide portion 1 is provided between the two.
And a sliding guide portion 1 of the rotating body 3
7 , a locking position for locking to the locking portion 33 and a locking portion 33;
A locking member 29 slidably provided reciprocally slidably over a disengaged position, a handle connected to the rotating body 3 through the case 2, and connected to the rotating body 3 through the case 2 A locking rod 6 is provided, and the handle is rotated to rotate the locking rod 6 together with the rotating body 3 to lock the locking rod receiver 10.
In gates lock disengaged, the rotation center of the handle, the rotation center of the rotary body 3, to form a shaft hole over the rotational center of the locking lever 6, and rotatably inserted the shaft 39 to the shaft hole, the
A shaft 39 is provided with a pinion, and the locking member 29 is provided with a rack meshed with the pinion.
A gate lock characterized by being provided. 2. A case 2 having a locking portion 33 therein.
The outer rotating body 14 rotatably provided in the case 2
The inner rotating body 15 is connected, and the sliding guide portion 1 is provided between the two.
7 and the rotating body 3 with the sliding guide portion 1 of the rotor 3
7 , a locking position for locking to the locking portion 33 and a locking portion 33;
A locking member 29 slidably provided reciprocally slidably over a disengaged position, a handle connected to the rotating body 3 through the case 2, and connected to the rotating body 3 through the case 2 A locking rod 6 is provided, and the handle is rotated to rotate the locking rod 6 together with the rotating body 3 to lock the locking rod receiver 10.
In the detachable gate lock, a shaft hole is formed over the rotation center of the handle, the rotation center of the rotating body 3, and the rotation center of the locking rod 6, and the outer shaft 40 and the inner shaft 41 are eccentric in the shaft hole .
The shaft 39 connected by the connecting rod 60 is
Is rotatably inserted in opposition to the locking member 29, and a groove 61 in which the connecting rod 60 of the shaft 39 is engaged is inserted into the locking member 29 in a direction substantially perpendicular to the moving direction of the locking member 29. A gate lock characterized by being formed toward.